While many projects may have a primary deliverable such as a house, almost all projects have additional deliverables such as documentation and customer support.

true/false

True

Explanation:

Primary deliverable delivers the project to the customer as a house so that they can go through about it and communicate with the seller regarding their queries and the seller has a responsibility to solve their queries timely in an effective and efficient manner so that the buyer can take interest to purchase.

And on the contrary, by doing this the seller makes his relationship with the buyer strong and long-lasting so seller provides customer support to the buyer. And when a buyer takes interest in the project so it is important that all the documentation should be fulfilled.